Hawlet adams



H. ADAMS.

GRATE BAR.

(No Mbdel.)

Patented N017, 1882.

Wbzesss UNITED STATES PATENT OFFICE.

HAWLEY ADAMS, OF NEW YORK, N. Y.

GRATE-BAR.

SPECIFICATION forming part of Letters PatentNo. 267,125, dated November'7, 1882.

Application filed September 9, 1882. (No model.)

To all whom it may concern:

Be it known that I, HAWLEY ADAMS, of New York, in the county and Stateof New York, have invented a certain new and useful Improvement inGrate-Bars, of which the following'is a specification.

An important object of my improvement is to render grates more durableand also to provide for readily renewing the portions which becomeimpaired soonest, so that I may thereby extend the usefulness of thegrates.

The improvement consists in the combination, in a grate-bar, of an outerframe and a detach able section arranged therein and adapted to bereversed end for end.

Italso consists in the combination, in a gratebar, of an outer framehaving a number of short lugs extending from its sides and severallonger lugs for extending into proximity with corresponding lugs ofadjacent bars, and a detachable section arranged within the same.

In the accompanying drawings, Figure 1 is a plan or top View of twograte-bars embodying my improvement. Fig. 2 is a transverse section ofone of them on the planes indicated by the line 00 a", Fig. 1, and Fig.3 is a transverse section of the same on the planes indicated by theline y 3 Fig. 1.

Similar letters of reference designate corre sponding parts in all thefigures.

A designates an outer frame of a grate-bar. It has rectangular portionsa, near the ends of which are several portions 1), here shown asextending obliquely. An open space of rhomboidal shape is thus formed onthe middle or central portion of the bar. At the ends of the frame arelong projections 0r lugs c, the spaces between which form passages forair. On the sides of the frame are projections or lugs d, which space orregulate the position of the grate-bar relatively to adjacentgrate-bars. There are also intermediate shorter projections or lugs, e,which serve to support fuel, and the spaces between which form passagesfor air.

B designates a central section arranged with- 5 in the frame A. Itcomprises a frame,f, here shown as of rhomboidal shape, and a number ofoblique bars, 9, parallel with the end portions of the framef. Lugs 71.extend from the side portions of the frame f into proximity with thesides of the portions a. of the frame A, so as to maintain the section Bin proper relation therewith. On the end portions of the frame fare lugsh, which extend into proximity with the oblique port-ions b. The logsII, 5

ported in the frame so as to be capable of tilting.

By my improvement a great number of air-' passages are provided. Hencedurability is increased and the central portion of a gratebar, which isalways the first to become im paired, may be renewed, so as to extendthe usefulness of the grate-bar.

What I claim as my invention, and desire to secure by Letters Patent,is'- 1. In a grate-bar, the combination of an outer frame and adetachable section arranged therein and adapted to be reversed, end forend, substantially as specified.

2. Inagrate-bar, the combination of an outer frame having a numberot'short lugs extending from its sides and several longer lugs forextending into proximity with corresponding lugs of adjacent bars, and adetachable section arranged within the same, substantially as specified.

HAWLEY ADAMS. Witnesses:

JAMES R. BOWEN, T. J. KEANE.

Owing to the 60

